Device for sharpening razors and razor-blades.



F. MYERS. IZEVIGE FUR SHARPENING RAZORS AND RAZOR hLADBS. I

APPLICATION FILED AUG.2, 1,909.

Patented Nov. 30, 1909 I I 2 SHEET8-SHEET 1- G Ho :4 mm

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F. MYERS.

I DEVICE FOR SHARPENING RAZORS AND RAZOR BLADES.

' APPLICATION FILED AUG.2, 1909.

2 SHEETS-SHEET 2.

"941,529. 7 I Patented Nov. 30, 1909.

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FREDERICK MYERS, OF NEW YORK, N. Y.

DEVICE FOR SHARPENI NG RAZORS AND RAZOR-BLADES.

Specification of Letters Patent. Fatente l New. 36},

Application filed August 2, 1909. Serial No. 510,909.

To all whom it may concern:

Be it known that I, FREDERICK MYERS, a citizen of the United States,residing at New York city, in the county and State of New York, haveinvented certain newand useful Improvements in Devices for SharpeningRazors and Razor-Blades, of which the following is a specification.

This invention relates to devices for sharpening razor blades and hasespecial reference to that class of devices adapted for sharpeningsafety razor blades. 5

The object of this invention is to provide an improved device of thischaracter by means of which a razor blade may be eflfectively moved intoand out of contact with a sharpening roller, and placed in reversedposition against the roller.

A further object of the invention is to provide unimproved device ofthis kind,

which will be simple and economical in construction, embodying only asingle sharpening roller, and a small number of operative parts.

of a razor blade sharpening device, constructed in accordance with thisinvention. Fig. 2 is a. side view thereof. Fig. 3 is a plan view thereofin horizontal section on the line wm, Fig. 1. Fig. 4 is a detail viewpartly in transverse section showing the device for moving the razorblade into reverse position. Fig. 5 is a detail view of the device inFig. at showing itsrelation to the razor blade as the latter is movedinto reverse position.

In the construction of the device a suitable sharpening roller 1 isprovided, having its bearings mounted in uprights :2, secured to asuitable base 3. Mounted in the lower end of the uprights 2, is a shaft1, having its central portion provided with an enlargement 5, with atubular socket 6, in which is swiveled a pin 7, having a head 8,provided with a suitable U-shaped clamping support 9, adapted to hold asafety razor blade 10. The sides of the support 9 conforming to theshape of, the'head of the blade 10 and being slightly elastic serve tohold the blade firmly in place, In order to move the blade 10 to andaway from the roller 1 and permit the edge of the blade to be heldagainst the sharpening roller for an interval of time, while it is beingsharpened, a mechanismfor that purpose is provided preferablyofthefollowing construction.

An elongated cam 11 with an extended outer curved edge 12 tern'iinatingin a nose- 13 is rigidly mounted at its inner end on an axial projection1 1 of the roller 1, extending through an upright 2. The roller isrotated by a handle 15, loosely mounted on the projection 1 L by meansof a laterally projecting tubular sleeve 15 engaging the projection 14;.Mounted on the side of the cam 11, at its inner end and curving over theinner end of the handle 15 is a strip 16, the end of whichengages theedge of the handle 15- when the latter is swung up against it. In thisposition if the movement of the handle be continued in the samedirection, the roller 1 will be rotated and the cam 11 swung around fromthe position.

shown in Fig. 1, nnt-ilits nose 13 contacts with a curved arm 17,mountedon the pro jecting end of the shaft 4 and held thereon by a.screw cap 18 engaging the end of the shaft. The arm 17, having theelongated inner curved ec go 19 over which the nose 13 of the cam 11 isadapted to ride, in the position shown in Fig. 1 remains immovable. asthe cam 11 swings around until the nose 13 strikes the arm 17. The caminits further movement pushes back the arm'- 17, and oscillates the shaft1, thereby swing mg the blade and its support away from the roller 1. Inorder that the roller 1 may not be turned backward and thereby be out bythe razor the strip 16 tapers in width from end to end so that if thehandle be turned backward its flat portion will ride over the outer edgeof the strip 16, and fail to turn the roller.

By means of the shape and indvement of the cam with respect to the arm17 it will be seen that the razor blade and holder will remain at restfor an interva of time while the blade is being sharpened, whichcorresponds to the space of time in which the 'arm17 remains at restwhile. the cam is moving. The arm 17 is limited in its outward movementby a coiled spring 20, connecting it with the upright 2, andrestoring itto its normal position shown in Fig. 1,

when released from the cam 1.1. The action of v forming the s ring 25wl'ien the wvhh .i't r The arm 24 extends forward and has its outer end24' and swing the nine holder and blade toward the roller 1,

and the blade into contact with the latter in the position shown in Fig.1.

' in the position of the parts shown in Fig.

2, the blade holder of turning or being swung into reversed potheinitial portion of sition. To permit of this movement before the shaft 4oscillates ,ahd the: blade holder swings back to normal position, as thenose 13 of cam 11 leaves the end of arm 17, the edge 12 of cam 11 ridesover the end of'arm 17 momentarily holding the arm 17 shaft 3, and bladeholder at rest until the blade holder and blade have been partly turnedwhen the cam 11 releases arm *2, and. the had" was blade holder andblade are moved back to normal position by the spring 20. Torotate theblade h'olderand'swin'g this blade into reversed position the followingdevice is employed. 4, a'dja'cent to one end thereoi is a rearw ardlyextending arm 21 to the outer end of which is a bifurcated lever 22having the 'a'rms 23 and 2-1, the arm 23-, projecting upward wit-l1 aninwardly curved upper *end '23 adapted to contact with therazo'r bladeis swung away from the roller 1.

projecting into a recess in the shaft 4. Pivotfed *on the pivot .pin ofthe lever 22 is a cam 'shap'ed pawl 25, limited in one directidn of itsoscillating movement b a projection 26 on its upper side whici comes incontact with a stop or project-ion 27 on the lever22. A projection 28 onits Tot-Ward end with which a projection 29 on the le'ver'22 is adaptedto come in contact serves as a stop to the downward movement of thelever 22. The levc'r'22, and the pawl are held in their normal position,shown in Figs. 1 and -1- by any suitable spring device, and as hereshown, preferably by a metallic strip 30, having the slit 31bentspring'en s 33 and 84, the end 33 bear in'g agzrinst and holding upthe arm 24: of lever 22, and the end 34 bearing against the lower sideof the pawl 25 near one end thereof and holding the projection26'agains't' the stop 27-. Projecting laterally from the enlargement onthe shaft t is a pin 35, adapted 'to contact with and ride over andunder the 'fforward tapering end of the pawl blade holder is swung awayfrom the roller 1.

-. The reversal of the-razor blade is brought about as followsz-lVhenthe blade holder and. bla arc swung away from the rollenl by theoscillation of shaft 4, the arm 21 on shaft 4 is swung dowinvard,carrying with it lever 22, and pawl 25, which bearing on spring 'e'nd34L presses it down under tension.

the limit of its outward 1 Mounted 'on the shaft leaf arms 32' with thesenses At the same time the pin 35, the bladd nearly around intoreversed position when the blade h'olde'r being swung bacr into normalposition the blade is pressed into, a straight line against the rollerl. As the arm 23 strikes one end of the blade, the pin 35 bearing downon one end of the pawl 25 holds the arm 23 in its forward position, sothat the other end of the swin ing razor blade is permitted to pass over't c arm 23. The pin 35 then owin to the oscillation of shaft 4: slipsoff of tie awl 25 and the spring end reacting um er tension throws lever22 and its arm 23 into normal position. It will thus be seen froidescription that a simple and elfecl'ive razor 'blades-liariener is)rovi'ded em lovin' but 1 i P g one sharpenin 'rol 'er in conjunctionwith a simple and s1 "ective device for moving the razor blade into andout of contact with the sharpening roller, and changing it to reversedposition by whirli'n or rotating it in ahorizontal plane at a rightangle to the vertical plane in which the sharpening roller is beingrotated always in the same direction. Havni "described the invention, Iclaiin- 1. A deviceof the character described, comprising a sharpeningroller, and means for moving a razor blade into and out of Contact withsaid roller, and rotating it in a horizontal plane into reversedposition.

2. In a device of the character described, a swi'veled razor bladesupport, and means for rotating it to bring the razor blade intoreversed position.

n the foregoing 3. A device of the character described,

comprising a sharpening roller, means for moving a razor blade into andout of con-' 'tact'wit'h the roller, and holding it for an interval oftime in contactwvith the roller, and means for swinging said blade in ahorizontal plane into reversed position,

4. A device for sharpening razors including sharpening means revolublein a vertical plane, a blade holder, and means for rotating said holderand blade in a horizontal plane to reverse the position of the blade.

5. "In 'a device of the character described, a sharpening roller, ablade holder mounted in a swiveled support and means for moving saidholder to and away from said roller, and rotating said holder in itssupport to reverse the position of the razor.

(tin a device of the character described a sharpening roller, bladeholder and sw'i velled support strikingthe razor blade and whirling itinto reversed position, and means for operating on said shaft, means forrazor blade holder and blade mounted in a swiveled support on saidshaft, a pivoted lever mounted on said shaft and adapted to strike therazor blade and rotate its support to bring the blade into reversedposition,

and means for operating the several parts as herein set forth.

9. In a device of the character described, a sharpenin roller, anoscillating shaft, a razor blade Iiolderv and blade mounted in aswiveled support on said shaft, a lever on said shaft, a cam on theroller shaft adapted to intermittently operate said lever, means foroperating said roller and cam, an arm on said oscillating shaft, and a'lever pivoted to said arm and adapted to strike the razor blade to bringit into reversed position.

10. In a device of the character described, a sharpening roller, anoscillatingvshaft, a razor blade holder and blade mounted. in a swiveledsupport on said shaft, a spring controlled lever on said shaft, a cam onthe roller adapted to intermittently operate said lever, means foroperating said roller and cam, an arm on said oscillating shaft, and alever pivoted on said arm, and having a pawl, and spring arms engagingsaid pivoted lever and pawl and a projection on the razor parts in timedrelation to each blade holder support adapted to engage said .pawl andoperate said pivoted lever, said".

pivoted lever being adapted to strike the razorblade and Whirl it intoreversed posia sharpening roller having an extension of its shaft, ahandle loosely mounted on said extension, and a cam mounted on saidextension and having. a projection adapted to engagethe handleto'operate the roller in the forward direction of its movement and to bedisengaged by the handle if it be turned backward.

12. In a device of the character described, a sharpening roller, a cammovable with said roller, an oscillating shaft, having a curved leverarm adapted to be intermittently operated by said cam, a rotatable razorblade support mounted on said shaft, means for moving said arm to normalposition and means. operated by said shaft for'whirling said razor bladeto a reversed position and permitting it to turn one revolution on itssupport,

13. In a device of the character described, a sharpening rollerrotatable in a vertical plane, a blade holder rotatable in a plane atright angles to said verticl plane, a rocking support for said bladeholder, and means for operating said support and roller and causing thelade holder to remain at rest for an interval of time at the end of eachrocking movement of its support.

FREDERICK MYERS. [14. s] In presence of- I MAY 'M. PLYEB, EnwAIn) W.Cam.

